Which technique is used to transmit large amounts of data such as voice and video, over long distances using modulation?
Correct answer: D. VPN
- A. Baseband
- B. Broadband
- C. Bandwidth
- D. VPN
Explanation
VPN (Virtual Private Network) is not directly a modulation technique. However, VPNs can be used to tunnel data over long distances using modulation techniques. VPNs create a secure connection over a public network by encrypting the data and using tunneling protocols to encapsulate the data packets. The actual transmission of the data over the long distance would likely use some form of modulation, such as frequency modulation (FM) or amplitude modulation (AM).
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